How can you safely pass a snowplow?

• By speeding up and overtaking it.
• By waiting for the red light to overtake it.
• By passing when the snowplow moves to the side of the road to allow vehicles to pass.
  Explanation:

  "Snowplow operators periodically move to the side of the road, approximately every 8 to 12 kilometres, to allow vehicles to pass safely. Always wait for this opportunity to pass, as attempting to overtake a snowplow in other situations can be dangerous due to reduced visibility and road conditions."
• By passing whenever you get the opportunity.